Detection rules › Sigma
Suspicious Dropbox API Usage
Detects an executable that isn't dropbox but communicates with the Dropbox API
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Command & Control | T1105 Ingress Tool Transfer |
| Exfiltration | T1567.002 Exfiltration Over Web Service: Exfiltration to Cloud Storage |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 3 | Network connection |
Stages and Predicates
Stage 1: selection
or:
DestinationHostname|endswith: api.dropboxapi.com
DestinationHostname|endswith: content.dropboxapi.com
Initiated: true
Stage 2: not 1 of filter_main_legit_dropbox
Image|contains: '\Dropbox'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
DestinationHostname | ends_with |
|
Image | match |
|
Initiated | eq |
|